聚苯乙烯磁性微球的制备及应用  

Preparation and Application of Polystyrene Magnetic Microspheres

作　　者：薛永萍[1,2] 瞿小兰 杨玲玲[1] 余冲[1] 蔡萌 汤璐 XUE Yongping;QU Xiaolan;YANG Lingling;YU Chong;CAI Meng;TANG Lu(College of Post and Telecommunication of Wuhan Institute of Technology,Wuhan 430073,China;Xingfa School of Mining Engineering,Wuhan Institute of Technology,Wuhan 430073,China;Wuhan Jiangxia Vocational and Technical School,Wuhan 430200,China)

机构地区：[1]武汉工程大学邮电与信息工程学院,湖北武汉430073 [2]武汉工程大学兴发矿业学院,湖北武汉430073 [3]武汉市江夏职业技术学校,湖北武汉430200

出　　处：《化学与生物工程》2025年第3期20-24,共5页Chemistry & Bioengineering

基　　金：国家重点研发计划项目(2018YFC1801800);湖北省2024年省级大学生创新创业训练计划项目(S202413239012)。

摘　　要：采用悬浮聚合法制备了一种以四氧化三铁(Fe_(3)O_(4))纳米粒子为核、聚苯乙烯为壳的磁性微球SG-151-F@P,通过扫描电镜(SEM)、透射电镜(TEM)、X-射线衍射仪(XRD)、傅立叶变换红外光谱仪(FTIR)、热重分析仪(TGA)、振动样品磁强计(VSM)等对其形貌、组成、Fe_(3)O_(4)包覆量、磁学性能等进行了表征。结果表明,SG-151-F@P微球的表面光滑、粒径分布较窄;SG-151-F@P微球中Fe_(3)O_(4)包覆量可达11.51%,具有超顺磁性,其饱和磁化强度为9.04 A·m^(2)·kg^(-1);SG-151-F@P微球应用于磁流化床反应器时,表现出较好的磁学性能。Taking Fe_(3)O_(4) nanoparticles as a core,and polystyrene as a shell,we prepared magnetic microspheres SG-151-F@P by suspension polymerization.Moreover,we characterized the morphology,composition,Fe_(3)O_(4) coating amount,and magnetic property by SEM,TEM,XRD,FTIR,TGA,and VSM.The results show that SG-151-F@P microspheres have smooth surfaces with narrow particle size distribution.The Fe_(3)O_(4) coating amount in SG-151-F@P microsphere can reach 11.51%,which is superparamagnetic and its saturation magnetization is 9.04 A·m^(2)·kg^(-1).SG-151-F@P microspheres show good magnetic properties when used in magnetic fluidized bed reactor.

关 键 词：Fe_(3)O_(4) 聚苯乙烯 磁性微球 表面修饰 超顺磁性 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业] TQ050.4